TYM T474, Manual

Page: 146 / 175

8 -
TROUBLESHOOTING
1. ENGINE SYSTEM
TROUBLE PROBaBLE caUSE SOLUTION
Engine
The start motor does
not run even when
turning the main
switch.
PTO switch set to ON position
•
Set the PTO switch to the OFF position
•
Defective safety switch
•
Have it repaired or replaced by workshop
•
Battery discharged
•
Charge the battery
•
Loose terminal
•
Check for looseness and corrosion. Clean, tighten and apply
grease
•
Faulty switch
•
Have it repaired or replaced by workshop
•
Defective start motor
•
Have it repaired or replaced by workshop
•
The start motor runs
but its speed cannot
be increased
Weak battery
•
Charge the battery
•
Poor ground
•
Clean the contact and connect the ground firmly
•
Incorrect viscosity of engine oil
•
Change engine oil with proper viscosity
•
The start motor runs
but the engine cannot
be started
Air in fuel system
•
Bleed the system
•
Clogged fuel filter
•
Clean or replace the filter
•
No delivery of fuel
•
Open the cock to add fuel
•
Defective engine
•
Have it repaired by workshop
•
Defective key stop unit
•
Have it repaired by workshop
•
The engine runs irregularly
Air in fuel system
•
Bleed the system
•
Clogged fuel filter
•
Clean or replace the filter
•
T474NH-영문-08(아).indd 2 2019-03-06 오전 10:05:55